Contamination of Excited States in Quenched QCD Hadron Propagators

Details Contamination of Excited States in Quenched QCD Hadron Propagators Contamination of Excited States in Quenched QCD Hadron Propagators

1992-11-11

arxiv.org/abs/hep-lat/9211027v1

Nucl. Phys. Proc. Suppl. 30 (1993) 397

Physics

High Energy Physics

High Energy Physics - Lattice

talk by T.Yoshie at Lattice '92, Amsterdam, 4 pages, 6 postscript figures, preprint UTHEP-246

Scientific paper

10.1016/0920-5632(93)90236-Y

Quenched QCD hadron spectrum is calculated with Wilson's quark action at $\beta=5.85$ and 6.0 on a $24^3 \times 54$ lattice. We discuss the problem of whether we have extracted the mass of the ground state at these $\beta$'s without contamination of the excited states. We show that the masses of the first excited states turn out to be consistent with experiment when we are able to obtain the propagators up to the large time slice region where the propagators take the asymptotic forms of the ground states.

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